METHOD FOR PREPARING SILICA GEL DIAPHRAGM, AND SILICA GEL DIAPHRAGM

Title:

METHOD FOR PREPARING SILICA GEL DIAPHRAGM, AND SILICA GEL DIAPHRAGM

Document Type and Number:

WIPO Patent Application WO/2016/165376

Kind Code:

A1

Abstract:

Disclosed are a method for preparing a silica gel diaphragm, and a silica gel diaphragm. The method comprises: using two substrate layers and a liquid silica gel to form a composite material strip via calendering means, the liquid silica gel being located between the two substrate layers; performing imposition hot-press forming on the composite material strip via a diaphragm mould base, the temperature of the hot-press forming being higher than the vulcanisation temperature of the liquid silica gel; removing the two substrate layers, and obtaining imposed silica gel diaphragms; performing punching on the silica gel diaphragms after the two substrate layers have been removed, so as to prepare the required silica gel diaphragms. In comparison with traditional solutions, the technical solution of the present invention has the advantages of simple forming means, low costs, a diversity of diaphragm shapes, and a thin diaphragm thickness.

Inventors:

GUO XIAODONG (CN)
WANG WENHAI (CN)

Application Number:

PCT/CN2015/097960

Publication Date:

October 20, 2016

Filing Date:

December 18, 2015

Export Citation:

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Assignee:

GOERTEK INC (CN)

International Classes:

H04R31/00; H04R7/00

Foreign References:

CN104853303A	2015-08-19
CN204836551U	2015-12-02
JPS56109097A	1981-08-29
CN202713585U	2013-01-30
CN203747985U	2014-07-30

Other References: